发明人徐明华,周伟,何建平. "Method for the Synthesis of 2-(Difluoromethyl)-5-methoxy-6-methylpyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 112072957 B, 授权公告日 2018-09-28.
发明人罗永刚,冯建国,杨光. "A Process for Preparing High-Purity 2-(Difluoromethyl)-5-methoxy-6-methylpyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 109173862 A, 授权公告日 2023-11-11.
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